docs: def pretty_str(self, indent=0):
          """Return a human-readable string representation of this object.
  
          Kwargs:
              indent (int): The amount of spaces to use as indentation.
          """
          if self.body:
              return '\n'.join(stmt.pretty_str(indent) for stmt in self.body)
          else:
              return (' ' * indent) + '[empty]'